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How do I add a password to an OpenSSH private key that was generated without a password?
I generated an OpenSSH private key using puttygen (and exported it in OpenSSH format). How can I put a password on this existing key (I know how to generate a new key with a password)?
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What is the meaning of addToBackStack with null parameter?
...ction is saved to the
back stack so the user can reverse the transaction and bring back the
previous fragment by pressing the Back button.
If you add multiple changes to the transaction (such as another add()
or remove()) and call addToBackStack(), then all changes applied
before you ca...
delete map[key] in go?
...ems a poor use of resources though!
Another way is to check for existence and use the value itself:
package main
func main () {
var sessions = map[string] chan int{};
sessions["moo"] = make (chan int);
_, ok := sessions["moo"];
if ok {
delete(sessions, "moo");
}
}
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How to create a temporary directory?
I use to create a tempfile , delete it and recreate it as a directory:
4 Answers
4
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Maven: how to do parallel builds?
... does not invoke maven externally.
– Thorbjørn Ravn Andersen
Oct 14 '15 at 14:03
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Breaking a list into multiple columns in Latex
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Using the multicol package and embedding your list in a multicols environment does what you want:
\documentclass{article}
\usepackage{multicol}
\begin{document}
\begin{multicols}{2}
\begin{enumerate}
\item a
\item b
\item c
\item d
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How can I initialize a String array with length 0 in Java?
...you can use:
private static final String[] EMPTY_ARRAY = new String[0];
and then just return EMPTY_ARRAY each time you need it - there's no need to create a new object each time.
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improve ...
Where did the name `atoi` come from?
... man pages indicating that atoi means Ascii to Integer (I suspect there is and I just haven't been able to locate it), it's been Ascii to Integer by convention at least since 1971.
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improve t...
Define make variable at rule execution time
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In your example, the TMP variable is set (and the temporary directory created) whenever the rules for out.tar are evaluated. In order to create the directory only when out.tar is actually fired, you need to move the directory creation down into the steps:
out.tar : ...
Why is 'false' used after this simple addEventListener function?
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@BikashChandraMondal check out the answer below.
– libra
Nov 20 '14 at 3:21
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